Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

4 hosts · 198 ms

HostCertsFirst seenLast seen
cloud.email.gintarine.lt 1 2025-10-21 2025-10-21
image.email.gintarine.lt 4 2025-12-22 2026-09-21
click.email.gintarine.lt 3 2025-10-04 2026-09-22
view.email.gintarine.lt 1 2025-10-21 2025-10-21

Programmatic access: API GET /v1/hosts/email.gintarine.lt (API key for paging).

Shown here: hostnames with a certificate that is valid now or expired within the last 90 days. The full history since 2013 — hostnames whose last certificate expired earlier — is a Pro plan method: GET /v1/hosts-history/email.gintarine.lt.